Toothbrush



FIG. 1 is an exploded perspective view of a toothbrush showing my new design;

FIG. 2 is a top view thereof shown in assembled condition;

FIG. 3 is a bottom view thereof;

FIG. 4 is a left side view thereof; and the right side view is a mirror image thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a rear view thereof. 

The ornamental design for a toothbrush, as shown and described. 